The 24 October 1929 trading day is known as Black Thursday, when panic selling struck Wall Street.
On that Thursday, the New York Stock Exchange experienced exceptionally heavy trading and a sharp early decline. A group of leading bankers bought shares in an effort to restore confidence, and prices recovered much of the day’s fall. The intervention did not end the underlying instability.
Selling returned with greater force the following week. Black Monday came on 28 October, followed by Black Tuesday on 29 October, when about 16 million shares changed hands. The market continued losing value after October, reaching a major low in July 1932.
Black Thursday is sometimes confused with Black Tuesday because Tuesday produced the crash’s most famous volume and headline figures. Both names refer to the same 1929 collapse, but they identify different dates in the sequence of panic selling.